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The Theory of Deadly Initials was an hypothesis published in the ''Journal of Psychosomatic Research'' in 1999,〔(''What's in a name: Mortality and the power of symbol'' ). Christenfeld, Nicholas, David P. Phillips and Laura M. Glynn. J. Psychosomatic Research, vol. 47 no. 3 (September 1999), pp. 241–254.〕 which proposed that there is a link between the lifespan of human males and their initials. The research, carried out by psychologists Nicholas Christenfeld, David Phillips and Laura Glynn, and published in the paper "What's in a Name: Mortality and the Power of Symbols", suggested that men with "negative" sets of initials (e.g. DIE or PIG) have, on average, a shorter lifespan than those with "positive" initials (e.g. ACE, VIP). The average increase in life expectancy for a set of positive initials was claimed to be 4.48 years, while the average decrease in life expectancy for negative initials was claimed as 2.8 years. This is attributed to stress from teasing and lower self-worth in individuals with "deadly" initials. In 2005, the hypothesis was investigated by Gary Smith, an economics professor at Pomona College in Claremont, California, and Stilian Morrison, a student there. They were unable to find any pattern in the samples they studied.〔(''Monogrammic Determinism?'' ). Smith, Gary and Stilian Morrison. Psychosomatic Medicine, no. 67 (2005) pp. 820–824.〕 The original research was conducted by comparing the age of people who died within a given year, while the second investigation compared the lifespans of people who were born in a given year.〔(What's in a name | eG weekly | EducationGuardian.co.uk )〕 ==References== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Theory of Deadly Initials」の詳細全文を読む スポンサード リンク
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